An influx of immune cells into the uterus may be what initiates childbirth. These grab on to muscle cells via tiny tubes and send across mitochondria to provide energy for contractions ...

The connections between the nervous system and muscles develop differently across the kingdom of life. It takes newborn humans roughly a year to develop the proper muscular systems that support the ...

Using powerful new visualization technologies, researchers have captured the first 3-D images of the structure of a key muscle receptor, providing new insights on how muscles develop across the animal ...

Medically reviewed by Oluseun Olufade, MD Key Takeaways Staying hydrated and getting enough electrolytes—including potassium, ...

The flow of water within a muscle fiber may dictate how quickly muscle can contract, according to a University of Michigan study. Nearly all animals use muscle to move, and it's been known for a long ...

New research has shown one type of muscle contraction is most effective at increasing muscle strength and muscle size -- and rather than lifting weights, the emphasis should be on lowering them. Good ...

A Swedish trainer says you can build muscle using three minutes of this exercise, so we looked at the science.